<![CDATA[Celery cultivation (Apium graveolens L.) experiences low productivity, which is cause by climatic factors and low soil fertility, coumpouned by cultivation systems that are not yet intensively applied and the excessive us of inorganic fertilizers. This study aims to determine the effect of the application of chicken manure fertilizer and liquid organic fertilizer derived from agricultural waste on the growth and yield of celery plants. The research was conducted at the Experimental Garden of Universitas Pembangunan Panca Budi, located on Glugur Rimbun Street, Sampe Cita Village, Kutalimbaru District, Deli Serdang Regency, Sumatera Utara Province. The method used was a factorial Randomized Block Design (RBD) consisting of 2 factors, with 16 treatment combinations, and 3 blocks. The first factors was chicken manure fertilizer with 4 levels: K0 = 0 g/ polybag (control), K1 = 50 g, K2 = 100 g, and K3 = 150 g. The second factor was liquid organic fertilizer from agricultural waste with 4 levels: P0 = 0 ml/ 250 ml of water/ polybag (control), P1 = 20 ml/ 250 ml, P2 = 40 ml/ 250ml, and P3 = 60 ml/ 250 ml. The observed parameters included plant height, number of leaf stalks, number of tillers, fresh weight per sample plant, fresh weight per plot, and consumable weight per sample plant. The result showed that the application of chicken manure had a highly significant effect on all parameters, while the application of liquid organic fertilizer derived from agricultural waste and their interaction did not show a significant effect.]]>
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